Machine Design
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

Left hand
None of these
Both A and B
Right hand

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Machine Design
Tapered roller bearings can take

Axial load only
Radial load only
Both radial and axial loads and the ratio of these being less than unity
Both radial and axial loads and the ratio of these being greater than unity

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